Eaton LESRK20 Edison Fuse - UL Listed, CSA Certified
Part Number: LESRK20
Quick Summary
The Eaton LESRK20 Edison fuse protects motors by interrupting inrush current in industrial drives. This helps prevent nuisance trips during startup while preserving starting torque for reliable operation. UL Listed and CSA Certified, it carries a Class RK1 rating with a 200 kAIC interrupt capacity, providing robust protection in 600 V circuits. This fuse also supports standard Edison line compatibility, enabling streamlined procurement and maintenance. By choosing a non-indicating design, engineers gain panel-design flexibility and simpler diagnostics, while benefiting from consistent protection across motor control applications.
Product Information
Extended Description
LESRK20 Eaton: Eaton Edison LESRK fuse, Non-indicating, High in-rush current motor protection, 20 A, Class RK1, 200 kAIC, Standard, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK20
UPC
782634548348
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
1.6 lb
Warranty
No warranty
Compliances
Not Applicable
Certifications
UL Listed CSA Certified
Amperage Rating
20 A
Interrupt rating
200 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Non-indicating, High in-rush current motor protection
Feature → Business Impact → Application: The non-indicating design reduces indicator wiring and panel clutter, simplifying installation and maintenance in control cabinets and MCCs. This translates to lower commissioning time and fewer points of failure during routine inspections. Feature → Business Impact → Application: High in-rush current motor protection minimizes nuisance tripping on startups, improving uptime for fans, pumps, and conveyor motors in manufacturing lines. Use LESRK20 in VFD-fed or direct-start motor circuits to maintain smooth operation without compromising protection. Feature → Business Impact → Application: 20 A amperage rating with a 600 V rating and Class RK1 classification aligns with common motor circuit protection standards, enabling standardized stocking and straightforward integration into existing protection schemes. Feature → Business Impact → Application: A 200 kAIC interrupt rating provides strong fault tolerance for motor faults and short circuits, reducing downstream damage and downtime in heavy industrial environments. Feature → Business Impact → Application: Compact 5 in length with 0.81 in width and 0.81 in height and a 1.6 lb weight supports dense panel layouts and easier retrofits in space-constrained switchgear and MCCs. Feature → Business Impact → Application: UL Listed and CSA Certified credentials simplify compliance documentation, support quality-assurance procedures, and accelerate project approvals for industrial automation projects.
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FAQs
The LESRK20 is designed for standard Edison fuse holders within 600 V motor control circuits. Ensure proper alignment with the fuse holder, insert fully until seated, and verify electrical continuity with a multimeter. Use appropriate PPE and follow lockout/tagout procedures. The 5 inch length and compact 0.81 inch cross-section facilitate straightforward panel mounting in retrofit and new-build MCCs.
LESRK20 provides a 20 A amperage rating, 200 kAIC interrupt rating, and a 600 V voltage rating. It is classified as Class RK1 and is UL Listed and CSA Certified, with a non-indicating design. These specifications ensure reliable motor protection for common industrial loads while meeting stringent safety and compliance requirements.
Yes. The LESRK20 is engineered for high inrush current protection, reducing nuisance trips during motor startups in drives and hard-start scenarios. Its 200 kAIC interrupt capacity provides robust fault clearance, while the non-indicating feature simplifies panel diagnostics in high-duty environments such as conveyors and pumps.
LESRK20 is UL Listed and CSA Certified, reflecting adherence to established safety and performance standards. These certifications support regulatory compliance, facilitate component approvals in control panels, and reassure buyers about quality and reliability in critical automation applications.
LESRK20 measures 5 inches in length with a 0.81 inch width and height, and weighs about 1.6 pounds. This compact profile enables dense packing in motor control centers and switchgear, simplifies retrofit projects, and reduces mounting clearance requirements while maintaining robust protection for 20 A circuits.